7. Lightning discharges and lightning occur when charges are separated at different heights in the clouds, and lightning is a charge transfer with the ground where the voltage between cloud and ground is 1.0 MV. In a flash, the charge 1.0 C can be transferred during a time of 2.0 ms. (a) How many electrons correspond to the charge in such a flash?
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7. Lightning discharges and lightning occur when charges are separated at different heights in the clouds, and lightning is a charge transfer with the ground where the voltage between cloud and ground is 1.0 MV. In a flash, the charge 1.0 C can be transferred during a time of 2.0 ms.
(a) How many electrons correspond to the charge in such a flash?
(b) Calculate the average current in the lightning.
(c) What electrical power is developed in the lightning, and what is the energy?
(d) If the cloud is at an altitude of 2.0 km, what is the electric field strength before the lightning and what is the force on an electron in the field?
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